What annoying bugs are you referring to?
No direct experience but B.V. has a bad reputation for bugs
Maybe some old B.V. users can provide you with some more information
I am an old BV user

The WYSIWYG editor is great to use, I don't think stability has really been an issue. It's the lack of certain features, tutorials and documentation that's the big hurdle. Basically the engine is relatively new and things needs fleshing out. GC seems in a bit of a 'Catch 22' situation where it really needs a communnity to support it but noone wants to be first to join.